WO2019217993A1 - Dispositif d'ancrage orthodontique - Google Patents

Dispositif d'ancrage orthodontique Download PDF

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Publication number
WO2019217993A1
WO2019217993A1 PCT/AU2019/050400 AU2019050400W WO2019217993A1 WO 2019217993 A1 WO2019217993 A1 WO 2019217993A1 AU 2019050400 W AU2019050400 W AU 2019050400W WO 2019217993 A1 WO2019217993 A1 WO 2019217993A1
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WO
WIPO (PCT)
Prior art keywords
anchorage
teeth
axis
attachment
tooth
Prior art date
Application number
PCT/AU2019/050400
Other languages
English (en)
Inventor
Craig Mathew Erskine-Smith
Original Assignee
Erskine Holdco Pty Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from AU2018901656A external-priority patent/AU2018901656A0/en
Application filed by Erskine Holdco Pty Ltd filed Critical Erskine Holdco Pty Ltd
Publication of WO2019217993A1 publication Critical patent/WO2019217993A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/14—Brackets; Fixing brackets to teeth
    • A61C7/16—Brackets; Fixing brackets to teeth specially adapted to be cemented to teeth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/14—Brackets; Fixing brackets to teeth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/28—Securing arch wire to bracket
    • A61C7/282—Buccal tubes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/007—Dental splints; teeth or jaw immobilisation devices; stabilizing retainers bonded to teeth after orthodontic treatments
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor
    • A61C7/28—Securing arch wire to bracket

Definitions

  • the present invention relates to orthodontic anchorage devices and more particularly but not exclusively to orthodontic anchorage devices that extend between and attach to two adjacent teeth.
  • Orthodontics traditionally and usually involves the treatment of either all the teeth in the mouth or all the teeth in one arch (maxillary or mandibular).
  • maxillary or mandibular the teeth in one arch
  • Anchorage unit towards the mesial it is quite common for these molar teeth to tilt quickly to the mesial or rotate instead of moving slowly forward in a bodily fashion.
  • the rapid tilting and often rotating of these teeth indicates a failure of anchorage caused by traditional devices and also causes the loss of the spaces created by stripping of precious enamel - with the effect that more enamel needs to be stripped later to provide sufficient space to achieve the realignment of the anterior teeth, and creating the double problem of an impaired and upset biting condition which can lead to temporomandibular joint dysfunction and other issues.
  • the maximum amount of enamel has already been taken and there is no more available. Even if there is more available, there are negative effects on the tooth and sometimes negative effects on the periodontal health of the teeth involved where the roots are too close together.
  • brackets or bands onto the molars which have a tube or slot set at an ideal angle relative to the tooth axis so that when the straight wire technique delivers its usual forces, and sufficient time has passed, the posterior teeth are correctly aligned and in harmony with the anterior segments.
  • the brackets are placed in such a way that when the wire is passed through or placed into the brackets or the buccal tube, the wire will be distorted if the tooth is malaligned, causing a force to act on the teeth and thus causing the molar teeth to realign into a perfectly ideal alignment.
  • bracket is put at a perfect angle relative to the tooth orientation - but if the tooth has a malaligned orientation it will be the wire that then is distorted and then provides the force to move the tooth into the correct orientation.
  • brackets are placed on molars in such a way as to cause them to move into the correct orientation when the straight wire technique is employed.
  • an orthodontic molar/premolar splinting device (a three-piece device) where there are two adhesive pads attached at either end of connector bar or tube.
  • the object of the splinting device is to fix two adjacent molars together so as to increase the anchorage value of the two adjacent teeth for the purposes of delivering forces to other teeth without moving the anchorage units.
  • a disadvantage of this device is that it requires at least two brackets to be bonded to the teeth, ( or two bands to be cemented to the teeth if using molar bands instead of brackets), and then the operator must select an appropriate connector bar or tube to be cut to length and modified in shape and alignment so that it fits between the two large buccal receptacles - and then use a cementation or bonding process that attaches this connector bar or tube to the two teeth involved in a way that does not put any force on these teeth and cements and splints them together in a passive way, so that there is no movement to this stable molar position or to the bite.
  • An advantage of the three-piece device is that it allows the adhesive pads to fit exactly to whatever malocclusion or orientation the two anchorage molars are in. This allows for a thin film of adhesive. Any deviation in the orientation of the molars is accommodated for in the slack between the splinting bar or tube and the large diameter hole that it fits into and also the splinting bar or tube - if it is made out of metal - can be bent so as to accommodate even greater extremes of malalignment of the two molars which it is rigidly fixing together.
  • a further disadvantage of known orthodontic anchorages is that the anchorages consist of a pad that is fixed to the tooth, with the pad then providing a pair of projections between which there is a groove or slot.
  • the orthodontic wire is placed in the groove.
  • the bracket must be correctly adhered to the tooth - they are typically designed to match and fit to the anatomy of the tooth such that the groove will be correctly oriented when the molar is eventually bought brought into correct alignment - typically in 9 to 18 months.
  • Anchorage coming from the molars only happens once the wire diameter and type has progressed to large stainless steel diameters towards the end of the treatment. Also the wire must fit intimately into the groove.
  • the tooth can move forward before the wire engages the groove and resists its forward tipping.
  • the groove size is the largest size the operator will go to at the end of the treatment and is set at the beginning of the treatment and is not changed, however wires are small to start with and are a very loose fit and only properly fit and fill up the groove towards the end of the treatment - during which time the anchorage value of this situation is very limited to non-existent.
  • an orthodontic anchorage to extend between two adjacent teeth, each tooth having an arcuate surface to which the anchorage is to be applied, the anchorage having a body that is integrally form of relative rigid material so as to resist deformation, the body having a first end portion and a second end portion, with the end portions being spaced and joined by a stem, the body being longitudinally elongated so as to extend between the end portions, and wherein the end portions each have a transverse cross-sectional area, and the stem has a transverse cross-sectional area less than the cross-sectional area of the end portions, with each end portion providing an attachment zone for attachment to a respective one of the teeth so that the anchorage extends between the teeth.
  • the attachment zones are arcuate to at least approximate the arcuate surfaces of the teeth to which the anchorage is to be applied.
  • the body is moulded from plastics material.
  • the plastics material is fibre reinforced.
  • the body is moulded of ceramic material.
  • the body is formed of metal.
  • the anchorage has a longitudinal axis, with the attachment zones being located along said axis.
  • the attachment zones are angularly spaced from each other about said axis by an acute angle.
  • the attachment zones are offset with respect to said axis.
  • the attachment zones extend at acute angles to said axis.
  • each attachment zone include a hollow that is to receive an adhesive to aid in securing the anchorage to the teeth.
  • each attachment zone includes a plurality of projections in said hollow that aid in engaging the adhesive.
  • an anchorage device to be secured to a tooth including a base to be secured to the tooth, and an outer wall fixed to the base and extending therefrom so as to enclose a cavity, with said outer wall having an end aperture providing access to said cavity, with said cavity being closed at a location remote from said aperture by an end wall portion of said wall.
  • said wall includes a further aperture providing for the delivery of a settable adhesive to be applied to said cavity.
  • the anchorage device includes a projection extending outwardly from said side wall.
  • said projection extends from the side wall and away from said end wall portion.
  • said anchorage device has a longitudinal axis extending through said end wall portion and end aperture, with said projection having a component of a direction of extension generally parallel to said axis.
  • an anchorage assembly including said anchorage device, with said anchorage device being a first anchorage device and the assembly including a second anchorage device, and a rod fixed to each anchorage device and extending between the cavities of the anchorage devices.
  • the anchorage assembly includes an adhesive in each cavity securing the rod to the anchorage devices.
  • Figure l is a schematic isometric view of an orthodontic anchorage to extend between two adjacent teeth;
  • Figure 2 is a series of schematic illustrations of the anchorage of Figure 1;
  • Figure 3 is a schematic isometric view of a modification of the anchorage of Figure 1;
  • Figure 4 is a series of schematic illustrations of the anchorage of Figure 3;
  • Figure 5 is a series of isometric illustrations of a further anchorage
  • Figure 6 is a series of isometric illustrations of a further anchorage
  • Figure 7 is a series of isometric illustrations of a further anchorage
  • Figure 8 is a series of isometric illustrations of a further anchorage
  • Figure 9 is a schematic isometric view of an orthodontic anchorage assembly
  • Figure 10 is a schematic isometric view of portion of the assembly of Figure 9; and [0039] Figure 11 is a schematic isometric view of a modification of the portion of Figure 10. DESCRIPTION OF EMBODIMENTS
  • FIG. 1 to 8 of the accompanying drawings there is schematically depicted an anchorage 10 to be fixed to two adjacent teeth so that the two adjacent teeth provide for secure anchoring of further orthodontic devices to the two teeth.
  • the orthodontic anchorage 10 includes a body 11 that is integrally formed of relatively stiff (preferably substantially rigid) material such as metal, plastics material that is reinforced with glass fiber, high strength ceramics, or reinforced composite resin.
  • relatively stiff material such as metal, plastics material that is reinforced with glass fiber, high strength ceramics, or reinforced composite resin.
  • the material forming the body 11 is coloured to match the colour of the teeth to which the anchorage 10 is attached.
  • the anchorage 10 has a longitudinal axis 12 with the body 11 longitudinally elongated so as to have a first end portion 13 and a second end portion 14 spaced from the end portion 13, with the end portions 13 and 14 joined by a stem 15.
  • the end portions 13 and 14 have transverse cross-sectional areas that are greater than the transverse cross-sectional area of the stem 15 to allow for better access for cleaning in the gap between the teeth and between the teeth and the anchorage 10, and to prevent inflammation of the gingiva by harbouring plaque and the food particles. Accordingly, adjacent the stem 15 there are recesses 16 between the end portions 13 and 14.
  • each attachment zone 17 is configured to be attached to a respective one of the adjacent teeth by an adhesive.
  • each attachment zone 17 includes a surface area 18 that surrounds a hollow 19 in which there is included a plurality of projections 20 that are spaced.
  • the hollow 19 provides a cavity that receives the adhesive, with the adhesive also securely engaging the projections 20.
  • the projections 20 may be isolated individual stalks or a series of bars and slots and provide surfaces 21 that extend generally transverse relative to the axis 12 to aid in securing the anchorage 10 to the surface of each adjacent tooth.
  • The“external” surfaces 22 are smooth and arcuate to minimise irritation in respect of the wearer of the anchorage 10.
  • the surface areas 18 are arcuate so as at least approximately match the arcuate outer surfaces of the teeth to which they attached.
  • a plurality of anchorages 10 can be provided in which the attachment zone 17 have varying inclinations relative to each other so as to best adapt to the orientation of the surfaces of adjacent teeth to which they are to be applied, given the wide variety of malocclusions and varying orientations that the two or three molars present with.
  • FIG. 3 there is schematically depicted the anchorage 10 in which the attachment zone 17 have a different inclinations relative to the anchorage 10 of Figure 1.
  • the attachment zones 17 are displaced relative to the axis 12 by acute angles 23. [0048] In the embodiment of Figure 6, the attachment zones 17 are displaced laterally relative to each other and relative to the axis 12.
  • the attachment zones 17 are spaced angularly about the axis 12 by different angles, so that they are angularly spaced about the axis 12 from each other.
  • Projection 24 that is fixed to and extends away from one of the end portions 13/14. Projection 24 extends firstly away from the end portion 13/14, and then generally parallel to the axis 12 so as to provide a hook, that can be engaged by bands or wires of an orthodontic assembly.
  • the above anchorage 10 has the advantage that it is easier for a dentist to apply the anchorage 10 to adjacent teeth, while assisting in accurate location of the anchorage 10. As the anchorage 10 is readily easy to install, the time required for installation is reduced relative to previously known anchorages. A further advantage is that the shapes of the pre-made anchorages 10 can be communicated to orthodontic companies that construct clear plastic aligners to go over the teeth.
  • any undercuts in the stem area can be blocked out with the relevant computer software at the time of the clinical set up - and any undercuts in this area can be blocked out with red wax if an impression is being taken. Therefore the one piece anchorage 10 as described has great flexibility in that it can be put on within the tray at the beginning of the aligner treatment in conjunction with the other attachments or it can be placed very early in the treatment prior to impressions or scanning, and prior to the other attachments which are often prescribed by the orthodontic aligner company.
  • a still further advantage is that the anchorage 10 is less likely to retain food debris, thereby ameliorating any problems in respect of bad taste and bad smell, and enhancing the prospects of cleaning the space between the teeth and between the anchorage 10 - thus reducing gingivitis and any pain or bleeding associated with it.
  • FIG. 9 and 10 there is schematically depicted a pair of adjacent teeth 30.
  • the assembly 31 includes a first and a second anchorage device 32.
  • Each anchorage device 32 includes a base 33 that is secured to the surface 34 of a respective tooth 30.
  • Each device 32 includes an outer wall 34 that in conjunction with the base 33 encloses a cavity 35.
  • the wall 34 also includes an end wall portion 36 while the wall 34 also provides an aperture 37 providing access to the cavity 35.
  • the wall portion 36 is spaced from the aperture 37. Accordingly, apart from the aperture 37, the cavity 35 is enclosed by the base 33 and wall 34, including end wall portion 36.
  • the wall 34 may also be provided with a second aperture 38 that provides for injection of a flowable substance into the cavity 35, the flowable substance being settable so as to harden.
  • a rod (wire) 39 is located so as to extend between the two anchorage devices 32 so as to extend into each of the cavities 35. If necessary, the wire 39 may be plastically deformed so as to accommodate various inclinations between the teeth 30.
  • the abovementioned flowable substance is injected into the cavities 35, with the flowable substance then hardening so as to provide a relatively rigid assembly 31.
  • the flowable substance will be a liquid or past, and may be light cured or self curing or dual cured.
  • the anchorage device 32 is provided with a projection 39 that engages another portion of an orthodontic assembly by bands or wires.
  • the projection 39 extends away from the end wall portion 36 so as to provide a“hook”.
  • Each of the anchorage devices 32 has a longitudinal axis 40, with the projection 39 having a direction of extension including a component generally parallel to the axis 40, and a component away from the end wall portion 36.
  • anchorages 10 which enhances the anchorage value of the posterior segments, especially the first and second molars, such that these anchorages 10 can be relied on to be used to apply force without them moving in order to move the anterior teeth without anchorage tilting or rotating, and with absolutely minimal mesial slippage. This allows the anchorages 10 to transmit the necessary forces to get the desired result in the anterior segment and also preserves any space or gaps created by stripping or removing enamel for repositioning the anterior teeth.
  • the anchorage value is maximised - and when used in conjunction with the splinting technique which prevents the forward or mesial tipping, or rotation of these molars then the anchorage value is taken to a very high level making it possible to avoid the use of other surgical anchorage devices such as implants or TAD’s (temporary anchorage devices) and improving substantially on the common situation of just leaving the molars as they are without any anchorage enhancements. It is the purpose of the above embodiments to‘freeze’ these molars in their existing position.
  • the bite is stable, and any changes to the bite can sometimes have an unexpected and undesirable effect on the patients temporomandibular joint or facial musculature and propensity to get headaches - and any changes to the bite especially in adults can be unpredictable in terms of pain and discomfort. It is one of the purposes of the above embodiments to reduce this potential threat of pain and discomfort by keeping the bite in the existing position that the patient is happy with and has lived with for some time.
  • Conventional known orthodontic devices also utilise two molar pads - sometimes called brackets or bondable bases - which can be adhered or bonded to the buccal enamel of the two molars, usually referred to as the first and second molars, these molar brackets are bonded on the buccal side for greater comfort to the tongue.
  • These molar pads may be glued or bonded to the tooth and form the base foundation for the metallic device (the‘bracket’ with a slot or a tube) that attaches onto them which then engages the arch wire.
  • bracket refers to both the bondable base and the overlying attached metallic material that forms the receptacle for the arch wire- be it a buccal tube or a conventional slot with wings that engage elastic or wire ligatures to hold the wire into the slot.
  • molar pads with molar bands which wrap around the tooth in order to attach firmly to the tooth. Attached onto these molar bands or pads are what is usually known in orthodontics as a buccal tube.
  • the wire size is increased over about one the year to 18 months in these conventional orthodontic molar brackets until it gets to a large and rigid diameter of approximately 0.02 inches or something like 0.019 x 0.025 inches stainless steel rectangular wire.
  • the two molars that are joined by these wires have an anchorage value that is improved and increased dramatically over the initial wire size of 0.012 inches or thereabouts.
  • the anchorage value of these molars is almost non-existent at the start of the treatment and only becomes evident and somewhat useful at the end of the treatment once the patient is in large diameter and rigid wires.
  • the wire in an out of the slot or the tube there must be a little bit of flexibility and slack - so that the molars may still move slightly compared to rigid fixation with cemented splinting devices.
  • This rigidity is very important as it stops the molars drifting forward under mesial pressure. Every millimeter of mesial drift counts when it is being stripped away from nonrenewable and precious enamel, and when every millimetre of enamel loss increases the risk to the tooth in the long-term.
  • the above embodiments have the advantage of being a single unit device 10 which is selected from a range of different sizes, orientations and offsets - it is not necessary to provide an infinite range of shapes and sizes because the adhesive cement is usually of a sufficiently thick viscous nature and sufficiently strong - such as that used for posterior composite restorations - to accommodate and fill in any slight or even substantial deficiency.
  • the cement in this case is no worse than a conventional posterior composite as far as strength is concerned and provides sufficient strength to span the gap from an imperfect fit due to the lack of an infinite range of shapes and sizes, and thus this cementing technique enables the current invention to be produced with practical and limited range of sizes, and still have a satisfactory clinical outcome.
  • the cementing process and the provision of an anchorage 10 is massively simplified by having a one-piece device chosen from a range of options.
  • Another disadvantage of these previously disclosed three-piece splinting devices is that they were typically made of metal and the connection bar may have been metal and it may have created a metallic and less than cosmetically desirable effect for patients who are using clear plastic trays in order to minimise the negative aesthetic impact of the orthodontic treatment.
  • a splinting anchorage 10 which functions as an anchorage enhancing device that also includes the option of a hook 39 which enables the easy attachment of elastics (chain, thread or bands ) or metallic springs which can then pull on the anterior teeth to pull them backwards - distally - towards the molars so as to unravel any anterior crowding or to provide a derotating force to twist an anterior or premolar tooth which has an anaesthetic twisted or crooked appearance.
  • any distal force applied to the premolars or the canines or the incisors will have an equal and opposite force on the molars causing them to drift towards the mesial - thus disturbing the bite and wasting precious stripped enamel - and it is the purpose of this anchorage 10 to resist that mesial tipping or rotating force.
  • the shape of the attachment zones 17 are such that they optimally fit to the anatomy of first and second molars in the human dentition.
  • the occlusal surface of these attachment end portions is shaped and modified so that it does not cover the entire buccal surface of the tooth, typically leaving an area at the occlusal unbonded so that the anchorage 10 is clear of interference caused when the molars mesh together during chewing when there is intercuspation and partial overlap of the molars.
  • On the lingual surface these restrictions are not so relevant, unless the molars are in cross bite, in which case any lingual appliance will have the same restrictions on shape and thickness.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

L'invention concerne un dispositif orthodontique (10) comprenant un corps (11) qui est formé d'un seul tenant d'un matériau relativement rigide. Le corps (11) possède un axe longitudinal (12), le corps (11) étant allongé longitudinalement dans la direction de l'axe (12) de façon à produire une première portion d'extrémité (13) et une deuxième portion d'extrémité (14). Les portions (13, 14) sont reliées par une tige (15). Les portions d'extrémité (13, 14) comportent chacune une zone de fixation (17) qui est fixée aux dents adjacentes par un adhésif.
PCT/AU2019/050400 2018-05-14 2019-05-02 Dispositif d'ancrage orthodontique WO2019217993A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU2018901656A AU2018901656A0 (en) 2018-05-14 An orthodontic anchorage assembly
AU2018901656 2018-05-14

Publications (1)

Publication Number Publication Date
WO2019217993A1 true WO2019217993A1 (fr) 2019-11-21

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PCT/AU2019/050400 WO2019217993A1 (fr) 2018-05-14 2019-05-02 Dispositif d'ancrage orthodontique

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220061963A1 (en) * 2020-09-01 2022-03-03 Dean UltraThin Retainer, LLC Patient specific dental appliances

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060188833A1 (en) * 2003-10-23 2006-08-24 Orthodontic Research & Development, S.L. Segmental distalisation element for orthodontic treatments
WO2009150634A2 (fr) * 2008-06-13 2009-12-17 Roberto Jose Carrillo Gonzalez Dispositifs orthodontiques
WO2010105069A1 (fr) * 2009-03-13 2010-09-16 Ultradent Products, Inc. Brackets orthodontiques jumeaux convertibles
WO2013134031A1 (fr) * 2012-03-05 2013-09-12 3M Innovative Properties Company Attelle orthodontique flexible
US20160270885A1 (en) * 2015-03-16 2016-09-22 Soon Yong Kwon Dental wire supporter for orthodontic treatment and orthodontic device having the same
WO2017020062A1 (fr) * 2015-07-31 2017-02-09 Erskine Products Pty Ltd Dispositif d'ancrage orthodontique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20060188833A1 (en) * 2003-10-23 2006-08-24 Orthodontic Research & Development, S.L. Segmental distalisation element for orthodontic treatments
WO2009150634A2 (fr) * 2008-06-13 2009-12-17 Roberto Jose Carrillo Gonzalez Dispositifs orthodontiques
WO2010105069A1 (fr) * 2009-03-13 2010-09-16 Ultradent Products, Inc. Brackets orthodontiques jumeaux convertibles
WO2013134031A1 (fr) * 2012-03-05 2013-09-12 3M Innovative Properties Company Attelle orthodontique flexible
US20160270885A1 (en) * 2015-03-16 2016-09-22 Soon Yong Kwon Dental wire supporter for orthodontic treatment and orthodontic device having the same
WO2017020062A1 (fr) * 2015-07-31 2017-02-09 Erskine Products Pty Ltd Dispositif d'ancrage orthodontique

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220061963A1 (en) * 2020-09-01 2022-03-03 Dean UltraThin Retainer, LLC Patient specific dental appliances

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